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Preparation of a composite coagulant: Polymeric aluminum ferric sulfate (PAFS) for wastewater treatment
A new composite coagulant polymeric aluminum ferric was synthesized and parameters affecting the coagulant performance such as reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios in this study, were examined. In addition, to obtain the optimum synthetic conditions resulting in the...
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| Published in: | Desalination 2012-01, Vol.285 (31), p.315-323 |
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| container_issue | 31 |
| container_start_page | 315 |
| container_title | Desalination |
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| creator | Zhu, Guocheng Zheng, Huaili Chen, Wenyuan Fan, Wei Zhang, Peng Tshukudu, Tiroyaone |
| description | A new composite coagulant polymeric aluminum ferric was synthesized and parameters affecting the coagulant performance such as reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios in this study, were examined. In addition, to obtain the optimum synthetic conditions resulting in the maximum turbidity removal efficiency, response surface methodology (RSM) was used to assess their interactive effects on coagulation–flocculation performance. The results showed that reaction temperature (60–80
°C) and time (30–50
min), and OH/Fe (0.1–0.3), P/Fe (0.2–0.3) and Al/Fe (1:9–1:10) molar ratios were favorable to the preparation process. The optimum synthesis conditions were reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios of 80
°C, 40
min, 0.1, 0.25 and 1:10, respectively. Evaluation of the coagulation–flocculation process showed that COD (chemical oxygen demand) and turbidity removal efficiency of 82.8% and 98.2%, respectively, were achieved at coagulant dosage of 45
mg/L, wastewater initial pH of 8.5, and rapid agitation speed of 250
rpm. In addition, charge neutralization and adsorption/bridging coagulation–flocculation mechanisms played an important role in reducing the surface charge of colloids.
► Polymeric aluminum ferric sulfate was a non-stoichiometric basic iron sulfate salt. ► Reaction temperature and time, and Al/Fe, OH/Fe and P/Fe molar ratio, were examined. ► Coagulant dosage, agitation speed and wastewater initial pH were experimentally tested. ► Charge neutralization and adsorption/bridging were the flocculation mechanisms. |
| doi_str_mv | 10.1016/j.desal.2011.10.019 |
| format | article |
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°C) and time (30–50
min), and OH/Fe (0.1–0.3), P/Fe (0.2–0.3) and Al/Fe (1:9–1:10) molar ratios were favorable to the preparation process. The optimum synthesis conditions were reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios of 80
°C, 40
min, 0.1, 0.25 and 1:10, respectively. Evaluation of the coagulation–flocculation process showed that COD (chemical oxygen demand) and turbidity removal efficiency of 82.8% and 98.2%, respectively, were achieved at coagulant dosage of 45
mg/L, wastewater initial pH of 8.5, and rapid agitation speed of 250
rpm. In addition, charge neutralization and adsorption/bridging coagulation–flocculation mechanisms played an important role in reducing the surface charge of colloids.
► Polymeric aluminum ferric sulfate was a non-stoichiometric basic iron sulfate salt. ► Reaction temperature and time, and Al/Fe, OH/Fe and P/Fe molar ratio, were examined. ► Coagulant dosage, agitation speed and wastewater initial pH were experimentally tested. ► Charge neutralization and adsorption/bridging were the flocculation mechanisms.</description><identifier>ISSN: 0011-9164</identifier><identifier>EISSN: 1873-4464</identifier><identifier>DOI: 10.1016/j.desal.2011.10.019</identifier><identifier>CODEN: DSLNAH</identifier><language>eng</language><publisher>Amsterdam: Elsevier B.V</publisher><subject>Adsorption ; agitation ; Aluminum ; Applied sciences ; Chemical engineering ; chemical oxygen demand ; Coagulants ; Coagulation ; Coagulation–flocculation process ; colloids ; Composite coagulant ; desalination ; Exact sciences and technology ; ferric sulfate ; General purification processes ; Iron ; Iron-based coagulant ; neutralization ; Optimization ; Oxygen demand ; Pollution ; Polymeric aluminum ferric sulfate ; response surface methodology ; temperature ; Turbidity ; Waste water ; wastewater ; wastewater treatment ; Wastewaters ; Water purification ; Water treatment and pollution</subject><ispartof>Desalination, 2012-01, Vol.285 (31), p.315-323</ispartof><rights>2011 Elsevier B.V.</rights><rights>2015 INIST-CNRS</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c422t-bce0d8976b9babd288178967a3b0946fbb62e3e3b56e394baf61c666d53632b03</citedby><cites>FETCH-LOGICAL-c422t-bce0d8976b9babd288178967a3b0946fbb62e3e3b56e394baf61c666d53632b03</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,27905,27906</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=25610421$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>Zhu, Guocheng</creatorcontrib><creatorcontrib>Zheng, Huaili</creatorcontrib><creatorcontrib>Chen, Wenyuan</creatorcontrib><creatorcontrib>Fan, Wei</creatorcontrib><creatorcontrib>Zhang, Peng</creatorcontrib><creatorcontrib>Tshukudu, Tiroyaone</creatorcontrib><title>Preparation of a composite coagulant: Polymeric aluminum ferric sulfate (PAFS) for wastewater treatment</title><title>Desalination</title><description>A new composite coagulant polymeric aluminum ferric was synthesized and parameters affecting the coagulant performance such as reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios in this study, were examined. In addition, to obtain the optimum synthetic conditions resulting in the maximum turbidity removal efficiency, response surface methodology (RSM) was used to assess their interactive effects on coagulation–flocculation performance. The results showed that reaction temperature (60–80
°C) and time (30–50
min), and OH/Fe (0.1–0.3), P/Fe (0.2–0.3) and Al/Fe (1:9–1:10) molar ratios were favorable to the preparation process. The optimum synthesis conditions were reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios of 80
°C, 40
min, 0.1, 0.25 and 1:10, respectively. Evaluation of the coagulation–flocculation process showed that COD (chemical oxygen demand) and turbidity removal efficiency of 82.8% and 98.2%, respectively, were achieved at coagulant dosage of 45
mg/L, wastewater initial pH of 8.5, and rapid agitation speed of 250
rpm. In addition, charge neutralization and adsorption/bridging coagulation–flocculation mechanisms played an important role in reducing the surface charge of colloids.
► Polymeric aluminum ferric sulfate was a non-stoichiometric basic iron sulfate salt. ► Reaction temperature and time, and Al/Fe, OH/Fe and P/Fe molar ratio, were examined. ► Coagulant dosage, agitation speed and wastewater initial pH were experimentally tested. ► Charge neutralization and adsorption/bridging were the flocculation mechanisms.</description><subject>Adsorption</subject><subject>agitation</subject><subject>Aluminum</subject><subject>Applied sciences</subject><subject>Chemical engineering</subject><subject>chemical oxygen demand</subject><subject>Coagulants</subject><subject>Coagulation</subject><subject>Coagulation–flocculation process</subject><subject>colloids</subject><subject>Composite coagulant</subject><subject>desalination</subject><subject>Exact sciences and technology</subject><subject>ferric sulfate</subject><subject>General purification processes</subject><subject>Iron</subject><subject>Iron-based coagulant</subject><subject>neutralization</subject><subject>Optimization</subject><subject>Oxygen demand</subject><subject>Pollution</subject><subject>Polymeric aluminum ferric sulfate</subject><subject>response surface methodology</subject><subject>temperature</subject><subject>Turbidity</subject><subject>Waste water</subject><subject>wastewater</subject><subject>wastewater treatment</subject><subject>Wastewaters</subject><subject>Water purification</subject><subject>Water treatment and pollution</subject><issn>0011-9164</issn><issn>1873-4464</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNp9kU1v1DAQhiMEEkvhF3DAF0R7yOKPxImROFRVSytVYqXSszV2xiuvknixHar--3q7FceexvP6mRl73qr6zOiaUSa_79YDJhjXnDJWlDVl6k21Yn0n6qaRzdtqRctNrZhs3lcfUtqVlCshVtV2E3EPEbIPMwmOALFh2ofkM5YTbJcR5vyDbML4OGH0lsC4TH5eJuIwHvK0jA4KfLo5v7o7Iy5E8gAp40MRI8kRIU8454_VOwdjwk8v8aS6v7r8c3Fd3_7-dXNxflvbhvNcG4t06FUnjTJgBt73rOuV7EAYqhrpjJEcBQrTShSqMeAks1LKoRVScEPFSfXt2Hcfw98FU9aTTxbH8g0MS9KK057SjveFPH2VZLJjLROiVwUVR9TGkFJEp_fRTxAfNaP6YIDe6WcD9MGAg1gMKFVfXwZAsjC6CLP16X8pbyWjDWeF-3LkHAQN21iY-7vSqKWUKlqgQvw8Elg2989j1Ml6nC0OPqLNegj-1Zc8AVYWpfs</recordid><startdate>20120131</startdate><enddate>20120131</enddate><creator>Zhu, Guocheng</creator><creator>Zheng, Huaili</creator><creator>Chen, Wenyuan</creator><creator>Fan, Wei</creator><creator>Zhang, Peng</creator><creator>Tshukudu, Tiroyaone</creator><general>Elsevier B.V</general><general>Elsevier</general><scope>FBQ</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7SU</scope><scope>8FD</scope><scope>C1K</scope><scope>FR3</scope><scope>JG9</scope><scope>KR7</scope><scope>7QH</scope><scope>7ST</scope><scope>7TN</scope><scope>7TV</scope><scope>7UA</scope><scope>F1W</scope><scope>H96</scope><scope>L.G</scope><scope>SOI</scope></search><sort><creationdate>20120131</creationdate><title>Preparation of a composite coagulant: Polymeric aluminum ferric sulfate (PAFS) for wastewater treatment</title><author>Zhu, Guocheng ; Zheng, Huaili ; Chen, Wenyuan ; Fan, Wei ; Zhang, Peng ; Tshukudu, Tiroyaone</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c422t-bce0d8976b9babd288178967a3b0946fbb62e3e3b56e394baf61c666d53632b03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Adsorption</topic><topic>agitation</topic><topic>Aluminum</topic><topic>Applied sciences</topic><topic>Chemical engineering</topic><topic>chemical oxygen demand</topic><topic>Coagulants</topic><topic>Coagulation</topic><topic>Coagulation–flocculation process</topic><topic>colloids</topic><topic>Composite coagulant</topic><topic>desalination</topic><topic>Exact sciences and technology</topic><topic>ferric sulfate</topic><topic>General purification processes</topic><topic>Iron</topic><topic>Iron-based coagulant</topic><topic>neutralization</topic><topic>Optimization</topic><topic>Oxygen demand</topic><topic>Pollution</topic><topic>Polymeric aluminum ferric sulfate</topic><topic>response surface methodology</topic><topic>temperature</topic><topic>Turbidity</topic><topic>Waste water</topic><topic>wastewater</topic><topic>wastewater treatment</topic><topic>Wastewaters</topic><topic>Water purification</topic><topic>Water treatment and pollution</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhu, Guocheng</creatorcontrib><creatorcontrib>Zheng, Huaili</creatorcontrib><creatorcontrib>Chen, Wenyuan</creatorcontrib><creatorcontrib>Fan, Wei</creatorcontrib><creatorcontrib>Zhang, Peng</creatorcontrib><creatorcontrib>Tshukudu, Tiroyaone</creatorcontrib><collection>AGRIS</collection><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Environmental Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Environmental Sciences and Pollution Management</collection><collection>Engineering Research Database</collection><collection>Materials Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Aqualine</collection><collection>Environment Abstracts</collection><collection>Oceanic Abstracts</collection><collection>Pollution Abstracts</collection><collection>Water Resources Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) 2: Ocean Technology, Policy & Non-Living Resources</collection><collection>Aquatic Science & Fisheries Abstracts (ASFA) Professional</collection><collection>Environment Abstracts</collection><jtitle>Desalination</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Zhu, Guocheng</au><au>Zheng, Huaili</au><au>Chen, Wenyuan</au><au>Fan, Wei</au><au>Zhang, Peng</au><au>Tshukudu, Tiroyaone</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Preparation of a composite coagulant: Polymeric aluminum ferric sulfate (PAFS) for wastewater treatment</atitle><jtitle>Desalination</jtitle><date>2012-01-31</date><risdate>2012</risdate><volume>285</volume><issue>31</issue><spage>315</spage><epage>323</epage><pages>315-323</pages><issn>0011-9164</issn><eissn>1873-4464</eissn><coden>DSLNAH</coden><abstract>A new composite coagulant polymeric aluminum ferric was synthesized and parameters affecting the coagulant performance such as reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios in this study, were examined. In addition, to obtain the optimum synthetic conditions resulting in the maximum turbidity removal efficiency, response surface methodology (RSM) was used to assess their interactive effects on coagulation–flocculation performance. The results showed that reaction temperature (60–80
°C) and time (30–50
min), and OH/Fe (0.1–0.3), P/Fe (0.2–0.3) and Al/Fe (1:9–1:10) molar ratios were favorable to the preparation process. The optimum synthesis conditions were reaction temperature and time, and OH/Fe, P/Fe and Al/Fe molar ratios of 80
°C, 40
min, 0.1, 0.25 and 1:10, respectively. Evaluation of the coagulation–flocculation process showed that COD (chemical oxygen demand) and turbidity removal efficiency of 82.8% and 98.2%, respectively, were achieved at coagulant dosage of 45
mg/L, wastewater initial pH of 8.5, and rapid agitation speed of 250
rpm. In addition, charge neutralization and adsorption/bridging coagulation–flocculation mechanisms played an important role in reducing the surface charge of colloids.
► Polymeric aluminum ferric sulfate was a non-stoichiometric basic iron sulfate salt. ► Reaction temperature and time, and Al/Fe, OH/Fe and P/Fe molar ratio, were examined. ► Coagulant dosage, agitation speed and wastewater initial pH were experimentally tested. ► Charge neutralization and adsorption/bridging were the flocculation mechanisms.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.desal.2011.10.019</doi><tpages>9</tpages></addata></record> |
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| ispartof | Desalination, 2012-01, Vol.285 (31), p.315-323 |
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| source | Elsevier |
| subjects | Adsorption agitation Aluminum Applied sciences Chemical engineering chemical oxygen demand Coagulants Coagulation Coagulation–flocculation process colloids Composite coagulant desalination Exact sciences and technology ferric sulfate General purification processes Iron Iron-based coagulant neutralization Optimization Oxygen demand Pollution Polymeric aluminum ferric sulfate response surface methodology temperature Turbidity Waste water wastewater wastewater treatment Wastewaters Water purification Water treatment and pollution |
| title | Preparation of a composite coagulant: Polymeric aluminum ferric sulfate (PAFS) for wastewater treatment |
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